handle_request
handle_request(ssif_bmc);
r->handler.address_callback = handle_request;
chan->ipc->ops->handle_request(chan->ipc);
chan->ipc->ops->handle_request(chan->ipc);
void (*handle_request)(struct imx_dsp_ipc *ipc);
void (*handle_request)(struct mtk_adsp_ipc *ipc);
.handle_request = imx_handle_request,
.handle_request = mtk_adsp_handle_request,
.handle_request = mtk_adsp_handle_request,